TABLE 2

Chromatographic and mass spectrometric data for AHLs identified by UPLC-MS

Bacterial speciesAHLChemical formulaExact mass (Da)rT (min)a[M + H]+ (m/z)bError (ppm)
Nss. multiformisC10-HSLC14H25NO3255.183442.35256.1869−3.2
Nss. briensis3-OH-C14-HSLC18H32NO4327.240963.02328.2456−3.2
Nb. vulgarisC10:1-HSLC14H23NO3253.167792.15254.1719−2.1
Ns. moscoviensisC8-HSLC12H21NO3227.152142.16228.1589−4.8
  • a rT, retention time.

  • b Experimental m/z values of protonated molecules.